18901968

素因数分解:

$2^4\times 3^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{367}}^1$

素因数の和:444

約数の個数: 80

約数和(自身を含む): 52020480

約数和(自身を除く): 33118512

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 29, 37, 48, 58, 74, 87, 111, 116, 148, 174, 222, 232, 296, 348, 367, 444, 464, 592, 696, 734, 888, 1073, 1101, 1392, 1468, 1776, 2146, 2202, 2936, 3219, 4292, 4404, 5872, 6438, 8584, 8808, 10643, 12876, 13579, 17168, 17616, 21286, 25752, 27158, 31929, 40737, 42572, 51504, 54316, 63858, 81474, 85144, 108632, 127716, 162948, 170288, 217264, 255432, 325896, 393791, 510864, 651792, 787582, 1181373, 1575164, 2362746, 3150328, 4725492, 6300656, 9450984, 18901968]

約数ペア:

[(1, 18901968), (2, 9450984), (3, 6300656), (4, 4725492), (6, 3150328), (8, 2362746), (12, 1575164), (16, 1181373), (24, 787582), (29, 651792), (37, 510864), (48, 393791), (58, 325896), (74, 255432), (87, 217264), (111, 170288), (116, 162948), (148, 127716), (174, 108632), (222, 85144), (232, 81474), (296, 63858), (348, 54316), (367, 51504), (444, 42572), (464, 40737), (592, 31929), (696, 27158), (734, 25752), (888, 21286), (1073, 17616), (1101, 17168), (1392, 13579), (1468, 12876), (1776, 10643), (2146, 8808), (2202, 8584), (2936, 6438), (3219, 5872), (4292, 4404)]